CN102436364B - Multi-display control method and system thereof - Google Patents
Multi-display control method and system thereof Download PDFInfo
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- CN102436364B CN102436364B CN201110393483.2A CN201110393483A CN102436364B CN 102436364 B CN102436364 B CN 102436364B CN 201110393483 A CN201110393483 A CN 201110393483A CN 102436364 B CN102436364 B CN 102436364B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/14—Display of multiple viewports
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/04—Partial updating of the display screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/06—Use of more than one graphics processor to process data before displaying to one or more screens
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/08—Power processing, i.e. workload management for processors involved in display operations, such as CPUs or GPUs
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Abstract
A kind of Multi-display control method and system, draw a display picture for controlling multiple graphic process unit, wherein each graphic process unit controls one or more display simultaneously.Said method comprises the following steps: to provide the graphic interface identical with the graphic package storehouse of an operating system, in order to replace this graphic package storehouse self-application process accepts drawing command; According to the viewing area of application program, determine the display set be made up of multiple graphic process unit, the picture shown by display that each graphic process unit of this display set controls all has common factor with viewing area; And, the display intersection area of the picture shown by the display that in gathering according to viewing area and display, each graphic process unit controls, assign each graphic process unit corresponding in corresponding coordinates translation drawing command to display set, only need to draw corresponding display intersection area part to make this graphic process unit in each display set.
Description
Technical field
The present invention relates to a kind of control method and system of display, particularly relate to a kind of control method and system of multiple display.
Background technology
Have the technology of many multiple displays at present on the market, such as, utilize multiple output adapter (multipleoutputadapter) increase display quantity, use the multiple display of computer drives of multi-section, utilize the function of display video signal source to be provided to multiple display or with external exchanger (externalswitch) by multiple display group synthesis display wall.Above-mentioned carried various technology respectively have relative merits, but generally speaking, the technology realized is too complicated, the expensive or tenability of shortage high-resolution image usually, wherein the most important thing is to lack 3-dimensional image display technique, the support of the Direct Three-dimensional routine library (Direct3Druntimelibrary) of such as Microsoft (MicrosoftCorporation).
3-dimensional image display technique, such as Direct3D, comprising the application of Direct3D image or the application of DirectShow video film etc. all needs to use the routine library of Direct3D to process presentation content.But at present Direct3D routine library can only a display on recognition logic, the form of an application program is even shown on multiple display by meaning, even if be by multiple graphic process unit (graphicsprocessingunit among current multiple display, be called for short GPU) controlled, form (Windows) operating system is still can only a graphic process unit process wherein the image of drawn Direct3D, then by this graphic process unit, drawn Direct3D image is copied to each graphic process unit for display according to display position.Due to above-mentioned copy be performed by operating system and without graphic process unit accelerate, so processing procedure is slowly.
Moreover, compared to setting up general bidimensional image content, setting up the computational complexity of 3-dimensional image data displaying contents, this is just more complicated, thus display control program (such as computer system) process also show image time can expend the more time.Therefore, if copy to the mode of other graphic process unit again at a drawn 3-dimensional image of graphic process unit according to prior art, especially in image processing process quite consuming time, produce procrastinateing of process timeliness again because of this reproducer, such processing mode is serious image display efficiency significantly.So, how when considering financial cost, accelerating to set up the displaying contents of 3-dimensional image data and being shown on multiple display, just becoming the problem that is needed badly solution.
Summary of the invention
The invention provides a kind of Multi-display control method, draw a display picture for controlling multiple graphic process unit, wherein each above-mentioned graphic process unit controls at least one display simultaneously.Above-mentioned Multi-display control method comprises the following steps.There is provided the graphic interface identical with the routine library of an operating system, to replace this routine library self-application process accepts drawing command; According to the viewing area of application program, determine the display set be made up of multiple graphic process unit, the picture shown by display that each graphic process unit in this display set controls all has common factor with viewing area; And, according to the display intersection area of the picture of viewing area shown by the display that controls of each graphic process unit of display set, coordinates translation is carried out to produce at least one coordinates translation drawing command to drawing command, and assign graph of a correspondence processor in coordinates translation drawing command to display set, with the part making the graphic process unit in each display set only need to draw corresponding display intersection area.
The invention provides a kind of multiple display control system, draw a display picture for controlling multiple graphic process unit, wherein each graphic process unit controls one or more display simultaneously.Multiple display control system comprises a storer and a controller.Controller provides the graphic interface identical with the routine library of an operating system, and with this graphic interface self-application process accepts drawing command.Controller is according to the viewing area of application program, and determine a display set of multiple graphic process unit, the picture shown by display that each graphic process unit in this display set controls all has common factor with viewing area.Controller is according to the display intersection area of the picture of viewing area shown by the display that controls of each graphic process unit of display set, coordinates translation is carried out to produce at least one coordinates translation drawing command to drawing command, and assigns graph of a correspondence processor in coordinates translation drawing command to display set.Display set is also recorded in storer with above-mentioned display intersection area by controller.
The invention provides a kind of Multi-display control method, draw a display picture for controlling multiple graphic process unit simultaneously, wherein each graphic process unit controls at least one display, Multi-display control method comprises: according to the viewing area of an application program, determine a display set of multiple graphic process unit, there is common factor the viewing area wherein show the picture shown by display that controls of graphic process unit in gathering and application program; According to the viewing area of the display that the graphic process unit in display set controls, coordinates translation is carried out to produce at least one coordinates translation drawing command to drawing command; And, and assign graph of a correspondence processor in coordinates translation drawing command to display set, with the part making the graphic process unit in each display set only draw display intersection area.
Based on above-mentioned, the present invention can accept drawing command from application program, and control after picture shown by display carries out coordinates translation according to each graphic process unit, after assigning coordinates translation drawing command to the graph of a correspondence processor of display set again, make the presentation content of the respective processes and displays intersection area of these graphic process unit energy, be shown on multiple display subsequently simultaneously, decrease the required time of show image on multiple display.
For making above-mentioned feature and advantage of the present invention become apparent, special embodiment below, and be described with reference to the accompanying drawings as follows.
Accompanying drawing explanation
Fig. 1 shows the schematic diagram of the multiple display control system of one embodiment of the invention.
Fig. 2 shows the flow chart of steps of the Multi-display control method of one embodiment of the invention.
Fig. 3 A and Fig. 3 B shows in one embodiment of the invention, the viewing area of an embodiment and the relation schematic diagram of display picture.
Fig. 4 shows in one embodiment of the invention, assigns the process flow diagram of drawing command to the step of each graphic process unit of display set.
Fig. 5 shows in one embodiment of the invention, assign drawing command each graphic process unit to display set, and drawing command comprises the process flow diagram of the step of the textured pattern drawn in viewing area.
Fig. 6 shows in one embodiment of the invention, assign drawing command each graphic process unit to display set, and drawing command comprises the process flow diagram of the step of the textured pattern in viewing area.
Fig. 7 shows in one embodiment of the invention, the schematic diagram of the embodiment that the textured pattern in viewing area shows on display.
Fig. 8 A and Fig. 8 B shows in one embodiment of the invention, the schematic diagram of the embodiment of the viewing area change of application program.
Fig. 9 shows the schematic diagram of the multiple display control system of one embodiment of the invention.
Reference numeral explanation
101,901: application program
102,902: graphic interface
103: middleware
903: multiple display control system
9031: controller
9032: storer
104,904: driver
1051 ~ 105n, 9051 ~ 905n: graphic process unit
106,906: multiple display
211,212,213,214,311 ~ 313,321 ~ 323,331 ~ 333,711,712,721,722,811 ~ 814: display
A11 ~ A14, A21 ~ A24, A71 ~ A74: display intersection area
B11, B21: textured pattern display intersection area
AP1A, AP1B, AP7, AP8A, AP8B: viewing area
S201 ~ S203, S400, S401, S403, S411, S412, S501 ~ S504, S601 ~ S604: step
Embodiment
Fig. 1 shows the schematic diagram of the multiple display control system of one embodiment of the invention.Please refer to Fig. 1, application program 101 sends the drawing command needed for display, and this drawing command is sent to graphic interface 102.Graphic interface 102 self-application program 101 receives drawing command, and is sent to middleware 103.Wherein, application program 101, middleware 103 and driver 104 all perform in an operating system, and the graphic interface 102 that middleware 103 provides is identical with the graphic interface of aforesaid operations system plot program bank, therefore middleware 103 can replace said procedure storehouse to receive the drawing command of application program 101, and application program also can not experience the existence of middleware 103.
In one embodiment, graphic interface 102 is by tackling the drawing command of application program 101, then middleware 103 carries out the operation of coordinates translation to tackled drawing command, in order to by drawing command at overall viewing area coordinate, after converting the display coordinate of each display that each graphic process unit controls to, again the drawing command after transforming co-ordinate is assigned to graph of a correspondence processor and carries out the process such as image or graphic plotting, do not need needed for the mode being undertaken processing by plot program bank again reaches.In addition, above-mentioned operating system can be the Windows of Microsoft, and above-mentioned routine library can be Direct3D routine library or OpenGL, but the present invention is not as limit.In other embodiments, available similar operating system and routine library substitute above-mentioned Windows and Direct3D routine library respectively.It should be noted; because current Direct3D routine library can only a display on recognition logic and a graphic process unit; namely meaning can only draw whole display pictures in a graphic process unit; by operating system, aforementioned display device picture is copied to remaining graphic process unit for display again; the process copied due to operating system slowly, therefore by effect that related impact shows.Contrary, the design of middleware 103 of the present invention can identify multiple display simultaneously and control multiple graphic process unit of multiple display, and middleware 103 also can assign the drawing command after coordinates translation to each graphic process unit, so under the middleware 103 of the embodiment of the present invention controls, together display picture can be drawn by multiple graphic process unit.Therefore Multi-display control method of the present invention passes through the design of graphic interface 102 and middleware 103, in order to replace Direct3D routine library to receive the drawing command of application program 101, and the mode of multiplex's process of arranging in pairs or groups accelerates the processing speed of image to reduce the burden of single graphic process unit; On the other hand, graphic interface 102 of the present invention and middleware 103 are when replacing Direct3D routine library to receive the drawing command of application program 101, application program 101 can't experience the existence of middleware 103, that is the present invention is under the framework not changing operating system and driver, reach the object of control based on direct control chart shape processor running simultaneously.
Continue referring to Fig. 1.Middleware 103 and graphic interface 102 couple, receive the drawing command by being transmitted by graphic interface 102, and the drawing command originally carrying out drawing in whole viewing area is carried out coordinates translation, after producing the coordinates translation drawing command corresponding to indivedual graphic process unit, call out driver 104 by operating system clean interface 107 again and assign above-mentioned coordinates translation drawing command to graphic process unit 1051 ~ 105n, will describe in detail in addition below the action of assignment coordinates translation drawing command.It should be noted, middleware 103 in one embodiment except the display coordinate of whole drawing area is converted to indivedual graphic process unit control except the coordinate of display, the resource also needing records application program to create and state, the position of the process of such as above-mentioned coordinates translation and record, indivedual resource required for coordinates translation post-plot order corresponding to graphic process unit and these resources.These resources can include, but are not limited to the end points register mode area (vertexbuffer) of Direct3D, index register mode area (indexbuffer), end points coordinates translation program (vertexshader), the information such as pixel color calculation procedure (pixelshader) and textured pattern; Can Direct3D be include, but are not limited to as above-mentioned state, rasterisation state, texture map state, the degree of depth and template state, export the information such as admixture.In addition, the details transmitting corresponding coordinates translation drawing command according to the content shown by indivedual graphic process unit describes, and is described further utilizing Fig. 3 A and Fig. 3 B, Fig. 7, Fig. 8 A and Fig. 8 B.In addition, operating system clean interface 107 is in one embodiment application programming interfaces (ApplicationProgrammingInterface that operating system is supplied to application program calling driver, API), due to these application programming interfaces be originally be supplied to the use of routine library call driver 104 that replaces by middleware 103, but in an embodiment because of this routine library replace by middleware 103, so middleware 103 also calls out driver 104 by these application programming interfaces.
Driver 104 couples with operating system clean interface 107 and graphic process unit 1051 ~ 105n respectively, and after receiving coordinates translation drawing command by middleware 103, what respectively these coordinates translation drawing commands are translated into that graphic process unit can identify again translates drawing command, is then assigned to graph of a correspondence processor 1051 ~ 105n translating drawing command.Driver is the communication bridge between computer operating system and hardware, it is the order (that is above-mentioned translate drawing command) that drawing command operating system transmitted is translated into graphic process unit hardware and recognizes, and this part belongs to the technology known by those skilled in the art therefore do not repeat at this.Graphic process unit 1051 ~ 105n and driver 104 couple, receive translated by driver 104 translate drawing command, and control multiple display 106 according to translating drawing command.Multiple display 106 formed to multiple display by one, and couples with graphic process unit 1051 ~ 105n.Wherein, each graphic process unit 1051 ~ 105n all can control multiple display 106 one of them to multiple display, and in the display buffer of display, image or the graphical content of wish display is drawn according to the instruction of translating drawing command, subsequently under the control of a computer system, the content of display buffer is simultaneously displayed in display.Significantly, because coordinates translation drawing command can be sent to driver 104 by operating system clean interface 107 by middleware 103, again the drawing command of translating of being translated by driver is assigned to graphic process unit 1051 ~ 105n subsequently, so do not need as prior art, can only process in a graphic process unit and the image of drawn Direct3D, again this image is copied to each graphic process unit for display according to display position, but directly by the data of required display, other graphic process unit is sent to by driver, therefore the display speed of 3D image can be accelerated, and hereinafter do more detailed description by the embodiment of the present invention.It should be noted, although the drawing command in overall viewing area may produce the coordinates translation drawing command that at least one corresponds to graphic process unit in display set after coordinates translation, but after such conversion, because indivedual graphic process unit can carry out the drafting operation of figure or image to respective display buffer according to the instruction of coordinates translation drawing command, so the mode by multiplex (MUX) accelerates the processing speed of image, and then reduce the burden of single graphic process unit.
Fig. 2 shows the flow chart of steps of the Multi-display control method of one embodiment of the invention, and this control method can be performed by middleware 103.Please refer to Fig. 2, first in step S201, this method provides the graphic interface identical with a certain routine library of operating system, such as, graphic interface 102 in Fig. 1, and replacing this routine library to accept drawing command to application program, such as, middleware 103 in Fig. 1 receives the drawing command sent by application program.Then, in step S202, determine the display set be made up of multiple graphic process unit according to the viewing area of application program, the picture shown by display that the graphic process unit in this display set controls all has common factor with above-mentioned viewing area.In one embodiment, viewing area is the form of application program shown by the picture of display, and it can cross over multiple display, and the instruction according to application program is drawn and show image or figure by these displays jointly.Then in step S203, the coordinates translation of overall viewing area to respective display is carried out according to display intersection area, after producing the coordinates translation drawing command corresponding to indivedual graphic process unit, then assign coordinates translation drawing command to the corresponding graphic process unit in display set.So, all graphic process unit in display set, can draw in respective display intersection area according to the instruction of coordinates translation drawing command, such as by Plotting data such as the pattern of required display or images in respective display buffer (Displaybuffer), shown the content of respective display buffer subsequently again, to complete the display operation of multiple display by the computer system control all graphic process unit shown in set simultaneously.
Fig. 3 A shows in one embodiment of the invention, the relation schematic diagram of a viewing area and display picture.First please refer to Fig. 3 A, display 211,212,213 and 214 in figure 3 a, it controlled by four graphic process unit GP11, GP12, GP13 and GP14 (not illustrating) respectively.Viewing area AP1A represents the form size and location of current application program, because the picture of viewing area AP1A and display 211,212,213 and 214 all has common factor, therefore display set in the present embodiment comprises graphic process unit GP11, GP12, GP13 and GP14 tetra-processors.As shown in Figure 3A, the picture intersection area of viewing area AP1A and display 211,212,213 and 214 is respectively and shows intersection area A11, A12, A13 and A14, it corresponds respectively to display 211,212,213 and 214, therefore show the graphic process unit GP11 in set, GP12, GP13 and GP14 by receive by driver assign translate drawing command (that is through coordinates translation, with drawing command after driver is translated), respectively process with draw the displaying contents shown in intersection area A11, A12, A13 and A14.Overall viewing area (that is viewing area AP1A) originally will be cut into four display intersection area A11, A12, A13 and A14 after coordinates translation, and carried out the operation of figure/visual renderings respectively by graph of a correspondence processor GP11, GP12, GP13 and GP14 simultaneously, do not need as prior art, only can carry out drafting operation in a graphic process unit.
Fig. 3 B shows in another embodiment of the present invention, the current viewing area of an embodiment and the relation schematic diagram of display picture.Please refer to Fig. 3 B, wherein display 311,312 and 313 controlled by graphic process unit GP21 (not illustrating), display 321,322 and 323 controlled by graphic process unit GP22 (not illustrating), and display 331,332 and 333 controlled by graphic process unit GP23 (not illustrating).As shown in Figure 3 B, the picture of viewing area AP1B and display 311,312,321 and 322 has common factor, so the display set in the present embodiment only comprises the graphic process unit GP21 and GP22 that control display 311,312,321 and 322.Therefore, graphic process unit GP21 and GP22 by receive assigned by driver translate drawing command (translating coordinates translation drawing command and obtain), and process and draw display intersection area A21 and A22, and the displaying contents in A23 and A24 respectively.Same, overall viewing area (that is viewing area AP1B) originally will be cut into four display intersection area A21 and A22 after coordinates translation, and A23 and A24, and carry out the operation of figure/visual renderings by graph of a correspondence processor GP21 (controlling display 311 and 312) with GP22 (controlling display 321 and 322) respectively simultaneously, such as graphic process unit GP21 only draws the content of display intersection area A21 by controlling display 311, do not need as prior art, only can carry out drafting operation in a graphic process unit.It should be noted, the graphic process unit GP31 in Fig. 3 B because of not in display set, so can not receive assigned by driver translate drawing command, the multiple display that also can not participate in viewing area AP1B operates.Moreover, although graphic process unit GP21 and GP22 is arranged in display set, but the display 313 controlled because of graphic process unit GP21 and the display 323 controlled by GP22 do not produce with viewing area AP1B and show intersection area, even if so graphic process unit GP21 and GP22 receive transmitted by driver translate drawing command, but only can control display 311/312 respectively and carry out multiple display with display 321/322, the multiple display that display 313 and 323 then can not participate in viewing area AP1B operates.
Fig. 4 shows in one embodiment of the invention, assigns the process flow diagram of drawing command to the step of each graphic process unit of display set.Please refer to Fig. 4, due in the present embodiment may be 3-dimensional image for the image of display, therefore first in step S400, must judge whether end points (vertex) coordinate in drawing command has been converted to the picture coordinate of display.If the extreme coordinates in drawing command has been converted to the picture coordinate of display, then in step S401, the coordinates translation of whole viewing area is become graphic process unit out of the ordinary control the coordinate of display, after producing coordinates translation drawing command, again for each graphic process unit in display set, only assign corresponding coordinates translation drawing command to display intersection area part, each graphic process unit therefore shown in set only needs to draw the display intersection area of its correspondence.The graphic process unit GP11 of such as Fig. 3 A will only need to draw display intersection area A11, and the graphic process unit GP22 of Fig. 3 B will only need to draw display intersection area A23 and A24.Subsequently in step S403, each graphic process unit in display set is by the content specified by drawing separately, such as by Plotting data such as the pattern indicated by coordinates translation drawing command or images in respective display buffer, and after all graphic process unit in display set all complete drafting, the all graphic process unit shown in set by computer system control show respective display intersection area simultaneously, that is all graphic process unit controlled in display set show simultaneously its control the content of the display buffer of display.
Continue referring to Fig. 4, if find that the extreme coordinates in drawing command is not yet converted to the picture coordinate of display in step S400, then in step S411, according to the extreme coordinates in drawing command and the transformational relation between the picture coordinate of display, and show the display intersection area of each graphic process unit in set, be visual field conversion (viewporttransform) of each graphic process unit setting correspondence in display set.Visual field conversion is one of function of Direct3D, and the conversion of setting visual field is equivalent to set each graphic process unit observable field range among the tri-vector space at above-mentioned end points place.Wherein, extreme coordinates can exist in the form of vectors, more just directly can obtain by the calculating that visual field is changed the picture coordinate be positioned on display.The display coordinate of application program on multiple display due to what change in step S411, so then in step S412, based on the setting of above-mentioned visual field conversion, again the display coordinate of overall viewing area (that is the viewing area on multiple display) is converted to indivedual graphic process unit control the coordinate of display, after producing the coordinates translation drawing command corresponding to indivedual graphic process unit, undertaken translating to produce translating drawing command by driver subsequently, be then sent to graph of a correspondence processor and draw.So each graphic process unit in display set just can only need to draw in drawing command, the part of the display intersection area corresponding to each graphic process unit.Then in step S403, control each graphic process unit will carry out separately drawing the displaying contents of translating specified by drawing command, such as by Plotting data such as the pattern of required display or images in respective display buffer, and when completing, all graphic process unit shown in set by computer system control show respective display intersection area simultaneously.
Below describe in the embodiment of the present invention, for the processing mode of the textured pattern drawn (renderabletexture) of Direct3D.Fig. 5 shows in one embodiment of the invention, assigns and can draw the flow chart of steps of texture drawing command to each graphic process unit in display set.Because after the position coordinates determining end points, another emphasis of display 3-dimensional image object is drafting and the display of the textured pattern of object surface, is therefore illustrated especially.Please refer to Fig. 5, first in step S501, after texture drawing for order can being drawn via graphic interface self-application process accepts, then take out the display position of textured pattern on the picture of display by drawing in texture drawing for order.It should be noted, step S501 is not the test pattern interface of Direct3D, but the extended function of the present embodiment, if so when application program can provide the display position of textured pattern on the picture of display, just by the embodiment of the present invention, graph of a correspondence processor will be distributed to for exhibit textural pattern after carrying out coordinates translation and cutting and draw.Then, in step S502, according to the display position of textured pattern, the textured pattern display intersection area of the picture shown by display that textured pattern each graphic process unit in display set controls is calculated.It should be noted, because same textured pattern may shown by multiple different display, if so do not carry out cutting process for the display position of textured pattern and content, such as calculate the words of coordinate in the display that textured pattern controls in each graphic process unit and required displaying contents, needs are sent to each graphic process unit being responsible for showing this textured pattern whole textured pattern process, waste resource and the time of whole computer system so beyond doubt.But after the invention provides this function, even if coordinates translation and cutting can be carried out to textured pattern further, and be sent to graph of a correspondence processor, this kind of wasting of resources can be exempted.In addition, the viewing area that textured pattern display intersection area means textured pattern and display gather in the picture shown by display that controls of each graphic process unit part of occuring simultaneously, it is included among display intersection area, and describing of this part can do more detailed explanation at Fig. 7.
Continue referring to Fig. 5, after calculating textured pattern display intersection area, in step S503, textured pattern display intersection area on picture according to the display that each graphic process unit in display set controls, entirety is shown coordinate be converted to indivedual graphic process unit control the display coordinate of display, convert coordinates translation textured pattern drawing command in order to texture drawing for order can be drawn.Because the textured pattern drawn shown in overall viewing area is cut into plural number part according to graph of a correspondence processor at this moment, and related data (comprising the textured pattern after cutting and display coordinate) is all included in coordinates translation textured pattern drawing command, therefore again they are assigned to each graphic process unit in textured pattern display set, and each graphic process unit is when only drawing a part of on the picture shown by the display that oneself controls of above-mentioned textured pattern, just can reaches and can draw the multiplex (MUX) process of textured pattern on multiple display.It should be noted that, the display that graphic process unit in display set controls also may not have textured pattern to show intersection area, will not participate in drawing the drafting of textured pattern so do not have textured pattern to show graphic process unit in the display set of intersection area in this step and carry out the action of multiple display.Last in step S504, after all graphic process unit are completed, computer system all graphic process unit that control and participate in is drawn again show the data be plotted in its display buffer simultaneously.It should be noted, when the display operation of step S504 is the display data writing display buffer of graphic process unit by each display, the textured pattern drawn of required display is write display buffer in the lump, otherwise the displaying time can drawing textured pattern may be incorrect.In addition, due to the graphic process unit in display set, be carry out drafting operation in the display intersection area of correspondence, these draftings operation can be undertaken by the drawing command of one or many, and the drafting of the textured pattern drawn is all somes of drawing operation herein.
Below describe in the embodiment of the present invention, for the processing mode uploading textured pattern (uploadedtexture) of Direct3D.Fig. 6 shows in one embodiment of the invention, assigns and uploads the process flow diagram of textured pattern drawing command to the step of each graphic process unit of display set.This embodiment is roughly the same with the process step of the embodiment described in Fig. 5, wherein both main difference are that this embodiment is directly provided by the textured pattern drawing command of uploading of application program for the textured pattern of uploading of display, instead of provided by operating system.Step S601 in Fig. 6 and S602 are identical with S502 with step S501 respectively.Subsequently in step S603, entirety is shown coordinate be converted to indivedual graphic process unit control the display coordinate of display, in order to upload textured pattern drawing command by what upload that textured pattern drawing command converts coordinates translation to.Same, because the textured pattern of uploading shown in overall viewing area is cut into multiple part according to graph of a correspondence processor at this moment, and related data (comprise uploading textured pattern and display coordinate after cutting) is all included in coordinates translation and uploads in textured pattern drawing command, therefore again they are assigned to the graphic process unit in display set, and the picture shown by display that controls of this graphic process unit has intersection area, and each graphic process unit is only drawn when uploading the intersection area of textured pattern on the picture shown by the display that oneself controls, just can reach and upload multiplex's process of textured pattern on multiple display.Next, in step s 604, when the textured pattern application program uploaded of all graphic process unit in display set is plotted in after in corresponding display buffer, computer system controls these graphic process unit again and shows data in its display buffer simultaneously.It should be noted, the display operation of step S604 is identical with step S504, during the display data writing display buffer of graphic process unit by each display, the textured pattern of uploading of required display is write display buffer in the lump, otherwise the displaying time uploading textured pattern may be incorrect.
Fig. 7 shows in one embodiment of the invention, the schematic diagram of the embodiment that the textured pattern (can be can draw textured pattern or upload textured pattern) in viewing area shows on display.Please refer to Fig. 7, wherein, display 711,712,721 and 722 controlled by graphic process unit GP71, GP72, GP73 and GP74 (not illustrating) respectively.Viewing area AP7 represents that the viewing area of application program also has with display 711,712,721 and 722 respectively and shows intersection area A71, A72, A73 and A74, therefore in display set, just has graphic process unit GP71, GP72, GP73 and GP74.Textured pattern viewing area TEX7 represents display position and the size of textured pattern, and has textured pattern with display 711 and 721 and show intersection area B11 and B21.Then, if textured pattern needs drawn, after then the part of textured pattern corresponding in the drawing command of application program display intersection area B11 and B21 being carried out the cutting of display coordinates translation and textured pattern, assign coordinates translation textured pattern drawing command (comprising the textured pattern of the coordinate after conversion and segmentation) more respectively to graphic process unit GP71 and GP73, control the textured pattern that graphic process unit GP71 and GP73 draws textured pattern display intersection area B11 and B21 respectively, and after graphic process unit completes all drafting operations, again by computer system control graphic process unit show simultaneously its control the content of the display buffer of display, so textured pattern just shows by multiple display mode.If textured pattern is provided (namely meaning is upload textured pattern) by application program, after then the part uploading textured pattern and correspond to textured pattern display intersection area B11 and B21 being carried out the conversion of display seat target and the cutting of textured pattern, assign coordinates translation more respectively and upload textured pattern order (also comprising the textured pattern of the coordinate after conversion and segmentation) to graphic process unit GP71 and GP73, subsequently by computer system control graphic process unit GP71 and GP73 show simultaneously its control the content of the display buffer of display, so upload textured pattern just can be simultaneously displayed on multiple display.Significantly, textured pattern display intersection area B11 and B21 is contained among display intersection area A71 and A73, so only have graphic process unit GP71 and GP73 need show for textured pattern the drafting that intersection area B11 and B21 carries out textured pattern, graphic process unit GP72 and GP74 then need not draw textured pattern at this moment.
Fig. 8 A and Fig. 8 B shows in one embodiment of the invention, the schematic diagram of the embodiment of the viewing area change of application program.Please refer to Fig. 8 A, wherein, display 811,812,813 and 814 controlled by graphic process unit GP81, GP82, GP83 and GP84 (not illustrating) respectively.Because the viewing area AP8A in Fig. 8 A only has common factor with display 811, that is only comprise graphic process unit GP81 in display set, therefore will only be sent to graphic process unit GP81 after the coordinate of drawing command is converted and draw.
Then, referring to Fig. 8 A and Fig. 8 B, now the viewing area AP8A of the viewing area of application program in Fig. 8 A increases to the viewing area AP8B in Fig. 8 B, therefore the viewing area of display 812,813 and 814 also produces with viewing area AP8B and occurs simultaneously, and therefore the graphic process unit GP82, GP83 and GP84 that control display 812,813 and 814 just add in display set.Due to graphic process unit GP82, GP83 and GP84 increased newly to display set in, in order to draw the displaying contents of application program, graphic process unit GP82, GP83 and GP84 must and graphic process unit GP81 there is identical state and resource.Therefore, middleware 103 can distinctly set aforementioned recorded state at the graphic process unit GP82 newly added, GP83 and GP84, and distinctly creates aforementioned recorded resource to the graphic process unit GP82 newly added, GP83 and GP84.In addition, when the viewing area of application program is moved, graphic process unit also may be had to increase newly in above-mentioned display set conjunction, and middleware 103 also can use same way at newly-increased graphic process unit set condition and establishing resource.It should be noted, when middleware 103 assigns the drawing command from application program 101, middleware 103 also according to drawing command, the state set by the graphic process unit of records application program 101 in above-mentioned display set and the resource created.As previously mentioned, these resources can include, but are not limited to the end points register mode area (vertexbuffer) of Direct3D, index register mode area (indexbuffer), extreme coordinates converse routine (vertexshader), the information such as pixel color calculation procedure (pixelshader) and textured pattern; Can Direct3D be include, but are not limited to as above-mentioned state, rasterisation state, texture map state, the degree of depth and template state, export the information such as admixture.
The present invention also provides a kind of multiple display control system, to perform aforesaid Multi-display control method.Fig. 9 shows the schematic diagram of a kind of multiple display control system of one embodiment of the invention.Fig. 9 and Fig. 1 major part is similar, the key distinction is the middleware 103 replacing Fig. 1 with multiple display control system 903, and multiple display control system 903 independently can be made into an integrated circuit (IntegratedCircuit, IC) or circuit module, those skilled in the art can determine use any embodiment according to actual demand.Multiple display control system 903 comprises controller 9031 and storer 9032, and its middle controller 9031 performs the Multi-display control method of above each embodiment, such as Fig. 2,4,5,6, the method flow that illustrates of 8A and 8B.And in the process performing said method, the data such as the display intersection area of the display set in step S202 (Fig. 2) and each graphic process unit in step S203 can be recorded among storer 9032 by controller 9031; Also can according to the drawing command of application program, by the resource record of the state set by the graphic process unit of application program in above-mentioned display set and establishment among storer 9032.
In sum, the invention provides a kind of Multi-display control method and system, make the image data for showing on multiple display, particularly during 3-dimensional image content, do not need by current Direct3D routine library, but by image data content, directly dividing the graphic process unit tasking each control display to draw its displaying contents by driver again after coordinates translation, show under the control of a computer system subsequently simultaneously.Not only the mode of multiplex (MUX) can accelerate the processing speed of image and reduce the burden of single graphic process unit, and expand in the viewing area of application program or mobile time, also flexibly can add graph of a correspondence processor and carry out computing simultaneously.
Although the present invention discloses as above with embodiment; so itself and be not used to limit the present invention, those skilled in the art, under the premise without departing from the spirit and scope of the present invention; can do some changes and retouching, therefore protection scope of the present invention is as the criterion with claim of the present invention.
Claims (17)
1. a Multi-display control method, draw a display picture for controlling multiple graphic process unit, wherein each above-mentioned graphic process unit controls at least one display, and this Multi-display control method comprises simultaneously:
The graphic interface identical with a plot program bank of an operating system is provided, and receives a drawing command with this graphic interface from an application program;
According to the viewing area of this application program, determine a display set of above-mentioned multiple graphic process unit, the graphic process unit wherein in this display set control display the viewing area of viewing area and this application program have common factor;
According to this graphic process unit in this display set control the viewing area of display, to carry out coordinate conversion to produce a coordinate conversion drawing command to this drawing command; And
Assign this graphic process unit corresponding in this coordinate conversion drawing command to this display set;
Wherein the viewing area of this application program represents that this application program is by the form size shown by this multiple display and position,
When wherein expanding in the viewing area of application program or move, flexibly can add graph of a correspondence processor and carry out computing simultaneously.
2. Multi-display control method as claimed in claim 1, after this coordinate conversion drawing command corresponding to each this graphic process unit wherein in this display set receives, each this graphic process unit in this display set only has the part of common factor to draw in this viewing area of this controlled display and the viewing area of this application program.
3. Multi-display control method as claimed in claim 2, also comprises and shows above-mentioned display intersection area when this graphic process unit all in this display set completes this display intersection area corresponding to drafting simultaneously.
4. Multi-display control method as claimed in claim 1, also be included in before producing this coordinate conversion drawing command, when the extreme coordinates of this drawing command is not yet converted to the picture coordinate time of the viewing area of this application program, for each graphic process unit in this display set carries out corresponding visual field conversion, to set each this graphic process unit observable field range among the tri-vector space at above-mentioned end points place in this display set.
5. Multi-display control method as claimed in claim 1, wherein when this drawing command be included in draw a textured pattern in the viewing area of this application program time, this drawing command of this assignment also comprises to the step of each this graphic process unit in this display set:
The display position of this textured pattern in this viewing area is received from this application program via this graphic interface;
According to the display position of this textured pattern in this viewing area, calculate the textured pattern display intersection area in this viewing area of this display that this textured pattern each this graphic process unit in this display set controls;
Coordinate conversion is carried out to this drawing command, in order to produce coordinate conversion textured pattern drawing command according to this textured pattern display intersection area; And
Assign this graphic process unit corresponding in this coordinate conversion textured pattern drawing command to this textured pattern display set.
6. Multi-display control method as claimed in claim 5, this wherein corresponding in this textured pattern display set graphic process unit is according to this corresponding coordinate conversion textured pattern drawing command, in this viewing area of this display controlled in this graphic process unit, only the part of this textured pattern display intersection area is drawn.
7. Multi-display control method as claimed in claim 1, also comprises:
According to this drawing command, the resource recording the state set by this application program this graphic process unit in this display set and create; And
If have graphic process unit to increase newly to gather to this display, then set above-mentioned state in this newly-increased graphic process unit and create above-mentioned resource.
8. a multiple display control system, draw a display picture for controlling multiple graphic process unit, wherein each above-mentioned graphic process unit controls at least one display simultaneously, and this multiple display control system comprises:
One storer; And
One controller, provides the graphic interface identical with a plot program bank of an operating system, and replaces this routine library and receive a drawing command with this graphic interface from an application program;
Wherein this controller is according to the viewing area of this application program, determines a display set of above-mentioned multiple graphic process unit, the graphic process unit in this display set control display the viewing area of viewing area and this application program have common factor;
The wherein display intersection area of this viewing area of this display that controls according to the viewing area of this application program each graphic process unit in this display set of this controller, coordinate conversion is carried out with after producing at least one coordinate conversion drawing command to this drawing command, assigns this coordinate conversion drawing command this graphic process unit to the correspondence in this display set;
Wherein this display set and this display intersection area are recorded in this storer by this controller; And
Wherein the viewing area of this application program represents that this application program is by the form size shown by this multiple display and position,
When wherein expanding in the viewing area of application program or move, this controller flexibly adds graph of a correspondence processor and carries out computing simultaneously.
9. multiple display control system as claimed in claim 8, wherein this coordinate conversion drawing command comprise each this graphic process unit in this display set control in this viewing area of display, to this display intersection area the coordinate drawn, coordinate conversion drawing command is assigned to this corresponding graphic process unit by this controller, only draws this display intersection area to make this graphic process unit according to this coordinate conversion drawing command.
10. multiple display control system as claimed in claim 9, wherein when all graphic process unit in this display set complete above-mentioned drafting, this controller all graphic process unit controlled in this display set show this display intersection area simultaneously.
11. multiple display control systems as claimed in claim 8, also be included in before producing this coordinate conversion drawing command, when the extreme coordinates of this drawing command is not yet converted to the picture coordinate time of the viewing area of this application program, this controller is the visual field conversion of each this graphic process unit setting correspondence in this display set, to set each this graphic process unit observable field range in the tri-vector space at this end points place in this display set.
12. multiple display control systems as claimed in claim 8, wherein when this drawing command comprises the textured pattern drawn in this viewing area, this controller to receive the position in this textured pattern this viewing area at this display from this application program via this graphic interface;
Wherein this controller is according to this textured pattern this position in this viewing area of this display, calculates the textured pattern display intersection area of this viewing area of this display that this textured pattern each this graphic process unit in this display set controls;
Wherein this controller is according to this textured pattern display intersection area of this textured pattern, coordinate conversion is carried out to this drawing command, in order to produce coordinate conversion textured pattern drawing command, and assign this graphic process unit corresponding in this coordinate conversion textured pattern drawing command to this display set, only draw the part of this textured pattern in this textured pattern display intersection area of this graphic process unit to make each this graphic process unit in this display set.
13. multiple display control systems as claimed in claim 8, wherein this controller is according to the state of this drawing command set by this this application program of storer record this graphic process unit in this display set and the resource created.
14. multiple display control systems as claimed in claim 13, wherein when there being a graphic process unit to increase newly to this display set, then this controller sets this state in this newly-increased graphic process unit and creates this resource.
15. 1 kinds of Multi-display control methods, draw a display picture for controlling multiple graphic process unit, wherein each this graphic process unit controls at least one display, and this Multi-display control method comprises simultaneously:
According to the viewing area of an application program, determine a display set of the plurality of graphic process unit, the graphic process unit wherein in this display set control display the viewing area of viewing area and this application program have common factor;
According to this viewing area of this display that this graphic process unit in this display set controls, coordinate conversion is carried out to produce at least one coordinate conversion drawing command to drawing command; And
Assign this graphic process unit corresponding in this coordinate conversion drawing command to this display set, with the part making this graphic process unit in each this display set only draw this display intersection area;
Wherein the viewing area of this application program represents that this application program is by the form size shown by this multiple display and position,
When wherein expanding in the viewing area of application program or move, flexibly can add graph of a correspondence processor and carry out computing simultaneously.
16. Multi-display control methods as claimed in claim 15, wherein when this drawing command be included in draw a textured pattern in the viewing area of this application program time, this drawing command of this assignment also comprises to the step of each this graphic process unit in this display set:
According to the display position of this textured pattern in this viewing area, determine the textured pattern display intersection area of the viewing area of this display that this textured pattern each this graphic process unit in this display set controls;
Coordinate conversion is carried out to this drawing command, in order to produce a coordinate conversion textured pattern drawing command according to this textured pattern display intersection area; And
Assign this graphic process unit corresponding in this coordinate conversion textured pattern drawing command to this textured pattern display set.
17. Multi-display control methods as claimed in claim 16, this graphic process unit wherein in this textured pattern display set is according to this corresponding coordinate conversion textured pattern drawing command, in this viewing area of this display controlled in this graphic process unit, only the part of this textured pattern display intersection area is drawn.
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| US13/530,087 US9182938B2 (en) | 2011-06-30 | 2012-06-21 | Method for controlling multiple displays and system thereof |
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